| nevoid basal cell carcinoma syndrome | <syndrome> An inherited group of defects which involve abnormalities of the skin, eyes, nervous system, endocrine, glands and bones. The condition is characterised by an unusual facial appearance and a predisposition for skin cancer. (27 Sep 1997) |
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| noninfiltrating lobular carcinoma | <tumour> Carcinoma of the breast in which small tumour cells fill preexisting acini within lobules, without invading the surrounding stroma. Synonym: lobular carcinoma in situ, lobular neoplasia. (05 Mar 2000) |
| sweat gland carcinoma | <tumour> Usually a solitary tumour, nodular and fixed to the skin and underlying structure, having slow growth for long periods followed by rapid growth and dissemination. (05 Mar 2000) |
| ductal carcinoma | <tumour> A carcinoma derived from epithelium of ducts, e.g., in the breast or pancreas. (05 Mar 2000) |
| ductal carcinoma in situ | <oncology, tumour> A cancer inside the ducts of breast that has not grown through the wall of the duct into the surrounding tissues. Sometimes referred to as a precancer. Good prognosis is involved with in situ cancers. (09 Oct 1997) |
| infiltrating ductal cell carcinoma | <oncology, tumour> A cancer that begins in the mammary glands and has spread to areas outside the gland. (13 Nov 1997) |
| inflammatory carcinoma | <tumour> Carcinoma of the breast presenting with oedema, hyperaemia, tenderness, and rapid enlargment of the breast; microscopically, there is extensive invasion of dermal lymphatics by the carcinoma. (05 Mar 2000) |
| intermediate carcinoma | <tumour> Obsolete term for basosquamous carcinoma (05 Mar 2000) |
| intraductal carcinoma | <tumour> A form of carcinoma derived from the epithelial lining of ducts, especially in the breast, where most carcinoma's arise from ductal epithelium; the neoplastic cells proliferate in irregular papillary projections or masses, filling the lumens, that are solid, cribriform, or centrally necrotic; intraductal carcinoma is a form of carcinoma in situ as it is contained by the ductal basement membrane; when it invades surrounding stroma or metastasizes it is referred to as ductal carcinoma. (05 Mar 2000) |
| intraepidermal carcinoma | <tumour> Carcinoma in situ of the skin; e.g., Bowen's disease. (05 Mar 2000) |
| intraepithelial carcinoma | Cancer that involves only the cells in which it began and has not spread to other tissues. Lobular carcinoma in situ is found in the lobules of the breast. Ductal carcinoma in situ (also called intraductal carcinoma) arises in the ducts. (16 Dec 1997) |
| invasive carcinoma | <tumour> A neoplasm in which collections of epithelial cells infiltrate or destroy the surrounding tissue. (05 Mar 2000) |
| oat cell carcinoma | <tumour> An anaplastic, highly malignant, and usually bronchogenic carcinoma composed of small ovoid cells with very scanty cytoplasm; this carcinoma and small round cell carcinoma's comprise over one-third of carcinoma's of the lung. Synonym: small cell carcinoma. (05 Mar 2000) |
| occult carcinoma | <tumour> A small carcinoma, either asymptomatic or giving rise to metastases without symptoms due to the primary carcinoma. (05 Mar 2000) |
| oesophageal carcinoma | <radiology> EtOH, tobacco, achalasia, Plummer-Vinson syndrome, stricture (caustic, radiation), Barrett mucosa (GE reflux, hiatus hernia), tylosis, geographical areas: Iran, China, southern France, Japan, head/neck carcinoma <strong>not</strong> Sprue / coeliac disease (12 Dec 1998) |